Aaeon bosenzweig



A. ROSENZWEIG. Sheet Metal Can.

No. 232,067. Patented Sept. 7,1880.

\Uaxne 55%.

N-PETERS. mowLrmoemPnER. WASHINGTON. a c,

UNITED STATES PATENT OFFICE.

AARON ROSENZWEIG, OF NEW YORK, N. Y.

SH E'ET- M ETAL CAN.

SPECIFICATION forming part of Letters Patent No. 232,067, dated September '7, 1880.

Application filed February 28, 1880.

To all whom it may concern:

Beit known that I, AARON ROSENZWEIG, a citizen of the Germ an Empire, residing at New York, in the county and State of New York, have invented new and useful Improvements in Sheet-Metal Cans, of which the followingis a specification.

My invention relates to means for applying a transparent plate to the top of a sheetmetal can or package for the purpose of rendering visible the contents of the can 5 and it consists in a transparent plate inclosed by a metal frame or binding, in combination with a can having a top opening the edge of which is shaped to form a shoulder adapted to receive the metal frame, so that this frame may be readily soldered upon the edge of the opening and a facile and cheap attachmentof the transparent plate is produced.

This invention is illustrated in the accompanying drawings, in which Figure 1 represents a plan or top view of a can embodying my invention. Fig. 2 is a vertical section of a portion thereof on a larger scale than in the previous figure. Fig. 3 shows a modification of the same.

Similar letters indicate corresponding parts.

In the drawings, the letter Adesignates the can, and B its opening; O, the transparent plate, and D the frame to the plate.

In the example shown in Figs. 1 and 2 the can-opening B is formed in its top or lid, (marked A,) and is of less diameter than the can, the transparent plate being in that case a portion of such top, while in the example shown in Fig. 3 said opening is orcomprises the whole area within or between the sides of the can, and the transparent plate and its frame constitute the entire top thereof. On the edge of the can-opening B is a shoulder, e, which, in Figs. 1 and 2, is formed by sinking the cantop A near the edge of the opening, and in Fig. 3 by bending the top edge of the sides of the can in an outer direction, as clearly shown.

The transparent plate 0 is preferably formed of mica, because with the use of that material I gain the additional advantage that the plate may be cut away to open the can; but said plate may also be a piece of glass.

The frame D consists of a strip of sheet metal bent on the edge of the transparent plate C, so as to bind orinclose the plate, and the plate is out to such a size and shape that the frame so applied thereto fits snugly on the shoulder e. In this example the transparent plate (3 is circular, that being the shape of the can A; but it is obvious that the plate may have any other shape.

when the can A has been filled the transparent plate 0 is placed in the can-opening with its metal frame or binding D resting on the shoulder e. The metal frame D is then soldered along its outer edge to an adjacent portion of the can, as at z', Fig. 2, and by this means the transparent plate is firmly held in position, the can being thereby closed or sealed, while its contents are rendered plainly visible.

In some cases the can is furnished with a detachable cover for protecting the transparent plate.

It will be readily seen that by my invention an effective attachment of the transparent plate to asheet-metal can is obtained with little labor and at low cost.

I am aware that it is not new in itself to apply a transparent plate to a package, and I make no claim to that feature.

What I claim as new, and desire to secure by Letters Patent, is-- The combination of a transparent plate inclosed by a metal frame or binding with a can having a top opening the edge of which is shaped to form a shoulder adapted to receive the metal frame, the whole constructed and applied for use substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

AARON ROSENZWEIG. Witnesses:

J. HERMANN WAHLERs, E. F. KAS'IENHUBER. 

